package com.example.demo.lesson9;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class ContentBasedFilter implements Filter{

   private static int instances = 0;

   @Autowired
   private Movie movie;

   public ContentBasedFilter(Movie movie) {
      super();
      this.movie = movie;
      instances++;
      System.out.println("ContentBasedFilter constructor called");
   }

   public Movie getMovie() {
      return movie;
   }

   public static int getInstances(){
      return ContentBasedFilter.instances;
   }

   //getRecommendations将一部电影作为输入，并返回类似电影的列表。
   public String[] getRecommendations(String movie) {
      //计算电影之间的相似度
      //返回电影推荐
      return new String[] {"Happy Feet", "Ice Age", "Shark Tale"};
   }
}
